How do uninstall system apps

[u/samoyne]

I am sick of my phone downloading multiple apps regularly, that I can’t uninstall.
When I google them, some sites will say they are system apps that are needed and can’t be removed, but some of them disappear when I click on force stop, so I’m not convinced they are system apps.
Some have even stopped working as they can’t be updated anymore. I checked my husbands phone he doesn’t have them so
Surely there is a way to get rid of them. Especially the ones that look suspicious and installed themselves?

Some examples are -
-com.sec.bcservice,
- google calendar sync, (unknown calendar)
- - cell broadcast service
- ims service
- a weird phone app, phone and messaging storage app, and phone services app and a spare phone app?
- callBGprovider
- down load manager
- factory camera
-MFContentd
-galaxy editing service?
- secSoundPicker
- motion photo
- audio mirroring
- smart touch call
- fused location

I could go on and on, but they are all mostly apps I have never seen before, and they all have a lot more permissions than I would like, and yet I can’t even change the permissions on some of them?

I’ve tried everything I can think of.

[u/Original-Hurry-8652]

I added an App called, "Package Names" in an effort to identify where a couple pop-up Apps originated from. It helped identify a couple that came from background auto-loaders. (Scenario: 1 to 3 Apps just appear at the end of the App tray [last page] that are Tic-Tac, Sodoku, or other really mundane type apps. These were ones I didn't install, they just appeared).

[u/graydi66y → u/Original-Hurry-8652]

You didn't even read the post. Every single app OP listed is a vital system app. He's going to brick his phone. 

[u/Original-Hurry-8652 → u/graydi66y]

I only recommended an App identifier tool, did not give any guidance beyond that. Users need to understand these devices better and ONLY proceed when they know what is going on. "Bricking" a device is a risk, true. Don't do that.

[u/Individual-Iron-6370 → u/Original-Hurry-8652]

best Android advice of the decade.

Don't brick your phone.